Scaffolding clamp



Feb. 13, 1923.

D. PALMER-JONES.

SCAFFOLDING CLAMP.

FILED Aua.4, 19 21 2 SHEETS-SHEET1v Feb. 13, 1923. 1,445,410

D. PALMER-JONES.

SCAFFOLDING CLAMP.

FILED AUG-4.1921 2 SHETS-SHEET 2.

the axis of-the first 7 is it necessary nearly all cases of ously clamped within the said U-shaped bracket by the pressure screw of the clamping plate. Further the U-shaped bracket is applied. to the first scaffold member bya movement-I ofthe bracket at right angles to scaffold member while similarly the second scaffold member is placed within the U-shaped bracket by a scaffold members and then the clamping opv eration effected.

- or may be formed in the face of the plate 7 to receive the hook members l, 5 of the first As a detail of construction, and when cy- =To; insure the second part or plate 7 against endway movement, recesses'13 are lindricallateral members such as 12 Figs. 1

vto 4 are to be secured, tliepre'ssure bolts 9 may contact with the circular surfaceof the I lateral member 12. slightly below,

or slightly above, or in the centre of its section as showm and it is further desirable that the slots 6 in the side wings of the bracket should extendibeyond the periphery of the lateral member 12 in a direction towards the axis of the vertical member 1.

ond scaffold member U shaped bracket composed of a plate of forl'nation to be passed onto and embrace a first scaffold "edges of said lngs',

What I claim as my invention and desire to secure by Letters Patent is y 1. In a clamping apparatus for clamping a firstscaffold member at. an angle to ajsecthe combination of a metal bent into U-shap'ed member, the two parallel wings of said U- shaped bracket each having a slot extending-Q from its free edge parallel to the length of: said wings of said bracket to receive the second scaffold member within said slots, w ng at its free end hay of saidwings, each H ing inwardly directed hooks achacent the ed to be slidden endwise between and, into the grip of said inwardly directed hooks of said U-shapcd'bracket, and means carried by said clamping; plate to act with pressure passed onto and embrace would be practically U-shaped bracket composed.

a clamping plate adaptit upon said second scaffold member within said slots of said'iU-shapedbrackettoclamp 'saidtwo scafi'old members together.

2. In a clamping apparatus,forclamping fafirst scaffold member "at an angle to a second scalfold member; the combination of a u shaped bracket composed of a plate of formation to be a first "scaffold member, the two parallel wings of said U- shaped bracketeach hav ng a slot extending metal bent into U-shaped from its free edge to receive the second scat fold member wlthm said slots of'sa1d wings,=

each wing at its free end having inwardlydirected 'hooks'adjacentthe edges of said wings; a clamping plate adapted to he: slidden endwise betweenf and said: inwardly directed hooksof said U shaped bracket, said clampingplate having screw threaded holeslocatedto come be tween the hooked end portions of the wings of said U-shaped bracket when theclamping plate is In pos1t1o'n, and pressurescrews passing' through and engaging said screw threaded holes to act with pressureiupon said sec ond scaffold member within said slots of" said U-shapedabracket to clamp said two scaffold members 'togethenf' In a "clamping apparatus afirst scaffold memberat an angle t'oa second scaffold member; the combination ofa metal bent into U-shaped formation-to be passed onto and embrace a first 'scafioldy member, the two parallel wings of said U- shaped bracket each havinga slot extending from itsfree edge parallel to the lengthof said wings of said bracket to(receive the sec- 1 ond sca old member within said slots? of: wing at its free endhaving said wings, each inwardlydlrectedihooks ad aCent the edges of said wings, a

of'said inwardlydirected hooks of'said U-shaped bracket said clampingplate having recesses in its outer facel to receive said:

inwardly directedhooksof said wings; and

meanscarriedby said clamping plate to act with pressure upon said second scaffold;

into the grip of.

for clamping clamping plate-adapted to V be slidden .endwise between and into the grip member within said slots of said UI-shaped':

bracketto clamp said twoscaffold members.

together;

In wltness wlt ereoif I have hereiinto set my hand in, the presence of two witnesses.-

A I L PALMEii-JonEsfl Witnesses: 1' i I a THoMAsYVm- AM Rosana:

VVILLIAM A; MARSHALL i i 

